Sensor drive control method and sensor-equipped radio terminal device
US7642925B2 · kind B2 · utility
0Cited by
8References
5Claims
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Key dates
| Filing date | Oct 11, 2007 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Oct 11, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D3/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor device wherein when a first sensor detects a detection object, the first sensor changes its output voltage level, and when the processor unit detects the change of the output voltage level of the first sensor as an interrupt signal, the drive voltage level of the first sensor is switched from the first signal level to the second signal level which is different from the first signal level and the drive voltage level of the second sensor is switched from the second signal level to the first signal level which is different from the second signal level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.